Xylem ProLab 1000 BENCH TOP pH METER - Manual (Page 59)

ProLab 1000 Operation
59 ba75576e04 01/2011
Continuing with two-
point calibration
[ i] #1 0.010 mg/l 24 °C
[ i] Immerse sensor in std. 2
Set temperature: 24 °C
Continue
Set standard : 0.020 mg/l
ISE <CAL>
12 Thoroughly rinse the electrode with distilled water.
13 Immerse the electrode in standard solution 2.
14 Using <
▲><▼>, select the Set standard setting and press
<MENU/OK> .
15 Set the concentration of the standard solution with <
▲><▼>
and press <MENU/OK>.
16 Measure the temperature of the standard solution using a
thermometer.
17 Select the Set temperature setting with <
▲><▼> and press
<MENU/OK>.
18 Set the temperature with <
▲><▼> and press <MENU/OK>.
19 Select Continue with <
▲><▼> and press <MENU/OK>.
The standard solution is measured.
The measured value is checked for stability (Stability control).
20 Wait for the end of the measurement with Stability control or
accept the calibration value with <MENU/OK>.
The calibration display for the next standard solution appears.
[ i] Standard = 0.020 mg/l
[ i] U = 8.4 mV
Terminate stability control
ISE <CAL>